summaryrefslogtreecommitdiff
path: root/include/sound/mpu401.h
diff options
context:
space:
mode:
authorTakashi Iwai <tiwai@suse.de>2008-04-25 09:13:45 +0200
committerTakashi Iwai <tiwai@suse.de>2008-04-29 19:01:56 +0200
commitdf7e3fdf83699328d1fdf7000ce0dc852fbb0ad9 (patch)
treedc5ca06bc0754352c8adf201b4f950d7fbf7c0b1 /include/sound/mpu401.h
parenta01e035ebb552223c03f2d9138ffc73f2d4d3965 (diff)
[ALSA] Add MPU401_INFO_NO_ACK bitflag
Added MPU401_INFO_NO_ACK bitflag to ignore the ACK check for UART commands. VT172x doesn't handle ACK commands, for example. Tested-by: Pavel Hofman <pavel.hofman@insite.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/mpu401.h')
-rw-r--r--include/sound/mpu401.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sound/mpu401.h b/include/sound/mpu401.h
index 68b634b75068..1f1d53f8830b 100644
--- a/include/sound/mpu401.h
+++ b/include/sound/mpu401.h
@@ -50,6 +50,7 @@
#define MPU401_INFO_INTEGRATED (1 << 2) /* integrated h/w port */
#define MPU401_INFO_MMIO (1 << 3) /* MMIO access */
#define MPU401_INFO_TX_IRQ (1 << 4) /* independent TX irq */
+#define MPU401_INFO_NO_ACK (1 << 6) /* No ACK cmd needed */
#define MPU401_MODE_BIT_INPUT 0
#define MPU401_MODE_BIT_OUTPUT 1